Question

Explain what it means if an organism uses SO42- as an electron acceptor, including where in the ATP producing process this would happen, and what might be a likely reaction and a likely product if it is used as the electron acceptor.

Answer 1

solution

1. Sulphate reducing organism uses low reducing potential of sulphure to make energy inside cells.
2. They are the termianl electron acceptor in absence of oxygen.
3. (SO4)2 is absorbed and reduced into H2S by using energy ATP on bacterial inner membrane.
4. Chemolithotrophic bacteria that use sulfate as terminal electron acceptor (sulfate-reducing bacteria) constitute a unique physiological group of microorganisms that couple anaerobic electron transport to ATP synthesis.